<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>系统主页</title>
</head>
<body>
当前用户：${SESSION.username }
<a href="${pageContext.request.contextPath }/deleteSession">退出</a>
</body>
</html>